Weil-McLain 88 Water and Steam Boilers — Series 2 — For Light Oil-Fired Burners

Burner specifications and settings

Table 1

Burner data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Burner Input

Low Fire

Positive

Standard

 

 

Approximate

Boiler

 

Standard

Starting

Air Settings

 

(Forced Draft)

Firing Rate

Pressure In

Burner

Model

 

Combustion

Head

 

 

No. 2 Oil

No. 2 Oil

Firebox

Model

 

Number

 

Control

Setting

Low Fire

 

Gph

Gph

Inches W.C.

Designation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

488R

 

6.90

3.90

0.55

702CRD-W

60200

7/32

5/16

 

 

 

 

 

 

 

 

 

488

 

7.00

4.00

0.55

702CRD-W

60200

7/32

5/16

 

 

 

 

 

 

 

 

 

588

 

9.40

5.42

0.61

702CRD-W

60200

13/16

1/2

 

 

 

 

 

 

 

 

 

688

 

11.80

6.60

0.55

801CRD-W

60200

3/16

1/4

 

 

 

 

 

 

 

 

 

788

 

14.20

7.00

0.60

801CRD-W

60200

5/8

1/2

 

 

 

 

 

 

 

 

 

888

 

16.60

8.00

0.85

801CRD-W

60200

1

3/8

 

 

 

 

 

 

 

 

 

988R

 

17.20

8.90

0.65

1050FFD-W

60200

3/8

3/8

 

 

 

 

 

 

 

 

 

988

 

18.80

8.92

0.70

1050FFD-W

60200

1/2

1/4

 

 

 

 

 

 

 

 

 

1088R

 

20.00

9.60

0.70

1050FFD-W

60200

1/2

3/4

 

 

 

 

 

 

 

 

 

1088

 

21.50

10.10

0.70

1050FFD-W

RM7840L-1018

1/2

3/4

 

 

 

 

 

 

 

 

 

1188

 

23.50

12.00

0.75

1150FFD-W

RM7840L-1018

1/4

11/16

 

 

 

 

 

 

 

 

 

1288

 

26.00

12.54

0.75

1150FFD-W

RM7840L-1018

7/16

7/8

 

 

 

 

 

 

 

 

 

1388

 

28.50

13.44

0.80

1150FFD-W

RM7840L-1018

11/16

7/8

 

 

 

 

 

 

 

 

 

1488

 

31.00

15.10

0.75

1150FFD-W

RM7840L-1018

1

1

 

 

 

 

 

 

 

 

 

Notes for Table 1 and Table 2

1.Burner capacities listed for elevations up to 2,000 feet. For higher elevations, consult local Weil-McLain distributor/ agent or sales office.

2.Light oil ratings based on No. 2 fuel oil with heating value of 140,000 Btu per gallon.

3.Boiler-burner unit to be adjusted to achieve +0.10 inches W.C. pressure at the flue collar, resulting in positive pressure in firebox as listed.

4.Combustion Controls:

a.60200 combustion safety control uses a cadmium sulfide cell flame detector to monitor oil flame; provides inter- rupted duty, recycle type operation, latch-up feature, 30-second oil valve delay on, 30-second post purge, alarm contacts and safety monitor circuit.

b.RM7840L-1018 combustion safety control (for over 20 GPH applications) uses an ultraviolet flame detector to monitor oil flame and provides purge timings.

5.All motors furnished with integral overload protection with manual reset.

6.Mechanical pressure atomizing oil control system with on/ off operation, low fire start, high fire run and two-position air control is standard. Low-High-Low fire operation can be obtained by addition of SPST temperature or pressure controller.

7.120/60/1 control circuit is used for all burners.

2

Part No. 550-142-030/0508

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Weil-McLain 801CRD, 702CRD-W, 1050FFD-W, 1150FFD manual Burner specifications and settings, Burner data
Page 1 Page 3

1150FFD, 801CRD, 1050FFD-W, 702CRD-W specifications

Weil-McLain is a name synonymous with quality and efficiency in the heating industry, and its various models, including the 702CRD-W, 1050FFD-W, 801CRD, and 1150FFD, demonstrate an impressive commitment to performance and innovation. These models cater to diverse heating needs, whether for residential or commercial applications.

The Weil-McLain 702CRD-W is a compact, high-efficiency boiler that operates using natural gas or propane. Its advanced technology facilitates effective hydronic heating, making it an ideal choice for smaller spaces that require consistent warmth. This model is designed with a durable construction that enhances its longevity and reliability. It features a user-friendly digital control panel for easy temperature adjustments and monitoring, contributing to improved user experience.

In contrast, the 1050FFD-W is a larger, powerful unit designed for demanding heating applications. Equipped with a two-stage gas burner, it offers efficient operation, significantly reducing energy consumption while maintaining optimal heating performance. The 1050FFD-W is engineered to provide robust heat output, making it suitable for larger residential or light commercial settings. Its built-in diagnostic system aids in identifying system issues promptly, thereby minimizing downtime.

The Weil-McLain 801CRD is another versatile model that excels in providing high-efficiency hydronic heating. It is constructed with a high-grade steel body, which enhances its performance and durability over time. This unit also features advanced low-NOx burner technology, which reduces emissions and ensures compliance with environmental standards. Additionally, the design incorporates a user-friendly control interface that simplifies operation.

Lastly, the 1150FFD combines high capacity and efficiency, making it an exceptional choice for larger heating demands. With a powerful output and innovative features such as a modulating burner, the 1150FFD can adjust its performance to meet varying heating loads efficiently. Its robust design ensures that it remains operational under a range of conditions, contributing to its reputation as a highly reliable heating solution.

In summary, the Weil-McLain models 702CRD-W, 1050FFD-W, 801CRD, and 1150FFD showcase advanced technologies, from energy efficiency to user-friendly controls. These boilers exemplify Weil-McLain's dedication to providing high-performance heating solutions that meet the varying demands of modern users. Their durability, efficiency, and ease of use make them a preferred choice in the heating market.
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